JP5115585B2 - Antenna device - Google Patents

Antenna device Download PDF

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JP5115585B2
JP5115585B2 JP2010116868A JP2010116868A JP5115585B2 JP 5115585 B2 JP5115585 B2 JP 5115585B2 JP 2010116868 A JP2010116868 A JP 2010116868A JP 2010116868 A JP2010116868 A JP 2010116868A JP 5115585 B2 JP5115585 B2 JP 5115585B2
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coil
terminal
antenna device
magnetic body
connection
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JP2011244363A (en
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浩一 中村
修一郎 山口
宗範 藤村
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to US12/869,250 priority patent/US9153855B2/en
Priority to EP10174332.6A priority patent/EP2296228B1/en
Priority to CN2010205116285U priority patent/CN201898209U/en
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本発明は、RF−ID、すなわちICカードやICタグ等の無線通信媒体との通信を行う無線通信媒体処理装置、あるいは無線通信媒体そのものに用いられるアンテナ装置に関するものである。   The present invention relates to a wireless communication medium processing apparatus that performs communication with a wireless communication medium such as an RF-ID, that is, an IC card or an IC tag, or an antenna apparatus used for the wireless communication medium itself.

近年、携帯電話等の携帯端末にRF−ID用無線タグを内蔵したものや、非接触型ICカードやICタグを読み取る機能を搭載したものが普及してきている。この種の装置に用いられるアンテナ装置は、例えば特許文献1に記載されているように、フェライトシートにコイルを複数回、巻回して構成され、フェライトの角部付近に端子を備えたものが知られている。通常、端子はフェライトのそれぞれの角部付近に合計で4つ備えられ、そのうちの2つがコイルとその他の部分とを接続するために用いられている。なお、その他の端子はコイルに接続されずにアンテナ装置を安定して設置するために用いられる。   In recent years, mobile terminals such as mobile phones that have built-in RF-ID wireless tags and those that have a function of reading non-contact IC cards and IC tags have become widespread. An antenna device used in this type of device is known, for example, as described in Patent Document 1, in which a coil is wound around a ferrite sheet a plurality of times and a terminal is provided near the corner of the ferrite. It has been. Usually, a total of four terminals are provided near each corner of the ferrite, two of which are used to connect the coil and the other parts. The other terminals are used to stably install the antenna device without being connected to the coil.

特開2004−159348号公報JP 2004-159348 A

フェライトの角部に端子を備える従来のアンテナ装置の概略構成図を図4、図5、図6に示し、とりわけアンテナ装置にコイルを巻回したものを図5および図6にそれぞれ示す。図4において、フェライト1に端子41がフェライト1のそれぞれの角部に備えられている。図5の場合には、位置Aにおける端子と位置Bにおける端子Bとがそれぞれコイル5に接続されている。この場合には、アンテナ装置が実装される通信装置のラインは位置Aにおける端子および位置Bにおける端子それぞれ接続しなければならず、アンテナ装置の通信装置に対する設置の方向性に制限が生じてしまうという課題があった。また、逆に設置の制限から例えば、図6に示すように設置の制限から位置Bにおける端子と位置Cにおける端子とを通信装置のラインに接続させようとすると、コイル5を位置Aの端子近傍部から位置Cの端子近傍部までわざわざ延ばして位置Cにおける端子に接続させる必要があり、コイル5に余分な長さを必要とするという課題があった。   4, 5, and 6 show schematic configuration diagrams of a conventional antenna device having terminals at the corners of the ferrite, and FIGS. 5 and 6 respectively show a coil wound around the antenna device. In FIG. 4, the ferrite 1 is provided with terminals 41 at the corners of the ferrite 1. In the case of FIG. 5, the terminal at position A and the terminal B at position B are each connected to coil 5. In this case, the line of the communication device on which the antenna device is mounted must be connected to each of the terminal at the position A and the terminal at the position B, which restricts the installation direction of the antenna device with respect to the communication device. There was a problem. On the other hand, for example, if the terminal at position B and the terminal at position C are to be connected to the line of the communication device due to installation restrictions as shown in FIG. There is a problem that the coil 5 needs to be extended from the portion to the vicinity of the terminal at the position C and connected to the terminal at the position C, and the coil 5 needs an extra length.

本発明は上記従来の課題に鑑みて為されたものであり、コイルに余分な長さを必要とせずに、通信装置に実装させる際の方向性の制限を無くしたアンテナ装置を得ることを目的とする。換言すれば、本発明によればアンテナ装置のフェライトの角部に備えられたどの端子と通信装置のラインと接続させても、通信装置のラインとコイルとを接続することができる。   The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide an antenna device that does not require an extra length of a coil and eliminates a restriction on directivity when mounted on a communication device. And In other words, according to the present invention, the line of the communication device and the coil can be connected to any terminal provided at the ferrite corner of the antenna device and the line of the communication device.

上記目的を達成するために、本発明に係るアンテナ装置は、略直方体からなる磁性体と、前記磁性体に形成された一辺に2つ設けられた第1の接続部と、前記磁性体に形成された他辺に2つ設けられた第2の接続部と、前記磁性体の外面に沿って巻回され2つの端部を備えるコイル部と、前記2つの第1の接続部同士前記コイル部に対し空隙を設けた連結部により架設連結した第1の端子部と、前記2つの第2の接続部同士前記コイル部に対し空隙を設けた連結部により架設連結した第2の端子部とを有し、前記コイル部の一端は前記第1の接続部のいずれか一方のみに接続し、前記コイル部の他端は前記第2の接続部のいずれか一方のみに接続されることを特徴とする。 In order to achieve the above object, an antenna device according to the present invention is formed on a magnetic body formed of a substantially rectangular parallelepiped, two first connection portions provided on one side of the magnetic body , and the magnetic body . a second connecting portion provided two other sides being, the magnetic body and a coil portion having two ends is wound along the outer surface of said two first said coil connecting portions a first terminal portion which is bridged connected by a connecting portion provided with the gap to part, said second terminal portion which is bridged connected by a connecting portion provided with the gap for two second connecting portions the coil section with each other has the door, the one end of the coil portion is connected to only one of said first connecting portion, the other end of the coil portion to be connected to only one of the second connecting portion Features.

本発明によれば、コイルに余分な長さを必要とせずに、通信装置に実装させる際の方向性の制限のないアンテナ装置を得ることができる。つまり、アンテナ装置のフェライトの角部に備えられたどの端子と通信装置のラインと接続させても、通信装置のラインとコイルとを接続することができ、しかも各接続部はアンテナ装置に実装させる際の固定部として機能するので安定して設置できるアンテナ装置を得ることができる。   ADVANTAGE OF THE INVENTION According to this invention, the antenna apparatus without the restriction | limiting of the directivity at the time of mounting in a communication apparatus can be obtained, without requiring extra length for a coil. That is, any terminal provided at the corner of the ferrite of the antenna device can be connected to the line of the communication device, and the line of the communication device can be connected to the coil, and each connection portion is mounted on the antenna device. Therefore, an antenna device that can be installed stably can be obtained.

本発明の一実施例におけるアンテナ装置の概略構成図1 is a schematic configuration diagram of an antenna device according to an embodiment of the present invention. 本発明の一実施例におけるアンテナ装置の概略構成図1 is a schematic configuration diagram of an antenna device according to an embodiment of the present invention. 本発明の一実施例におけるアンテナ装置の概略構成図1 is a schematic configuration diagram of an antenna device according to an embodiment of the present invention. 本発明の従来例のアンテナ装置の概略構成図Schematic configuration diagram of a conventional antenna device of the present invention 本発明の従来例のアンテナ装置の概略構成図Schematic configuration diagram of a conventional antenna device of the present invention 本発明の従来例のアンテナ装置の概略構成図Schematic configuration diagram of a conventional antenna device of the present invention

本発明の第1の発明に係るアンテナ装置は、略直方体からなる磁性体と、前記磁性体に形成された一辺に2つ設けられた第1の接続部と、前記磁性体に形成された他辺に2つ設けられた第2の接続部と、前記磁性体の外面に沿って巻回され2つの端部を備えるコイル部と、前記2つの第1の接続部同士前記コイル部に対し空隙を設けた連結部により架設連結した第1の端子部と、前記2つの第2の接続部同士前記コイル部に対し空隙を設けた連結部により架設連結した第2の端子部とを有し、前記コイル部の一端は前記第1の接続部のいずれか一方のみに接続し、前記コイル部の他端は前記第2の接続部のいずれか一方のみに接続されるようにしたものである。これにより、コイルに余分な長さを必要とせずに、通信装置に実装させる際の方向性の制限のないアンテナ装置を得ることができる。 Other antenna device according to a first aspect of the present invention, which is formed with a magnetic body made of substantially rectangular parallelepiped, a first connecting portion provided with two on one side that is formed on the magnetic body, the magnetic body a second connecting portion provided two on sides, and the magnetic coil section having two ends is wound along the outer surface of the two first connecting portions with respect to the coil unit A first terminal portion constructed and connected by a connecting portion provided with a gap; and a second terminal portion formed by connecting the two second connection portions to each other by a connecting portion provided with a gap with respect to the coil portion. and one end of the coil portion is connected to only one of said first connecting portion, the other end of the coil portion than that so as to be connected to only one of the second connecting portion is there. As a result, an antenna device can be obtained which does not require an extra length for the coil and has no restriction on directivity when mounted on a communication device.

また、本発明の第2の発明によれば前記第1の接続部と前記第2の接続部はアンテナ装置を実装させる際の固定部として機能するようにしたものである。これにより、安定してアンテナ装置は通信装置等に設置されることができる。   According to the second aspect of the present invention, the first connection portion and the second connection portion function as a fixing portion when the antenna device is mounted. Thereby, the antenna device can be stably installed in a communication device or the like.

また、本発明の第3の発明によれば、略直方体からなる磁性体と、該磁性体を巻回し2つの端部を備えるコイル部と、前記磁性体の一辺に位置する2つの角部近傍にそれぞれ備えられた第1の接続部同士を前記コイル部に対し空隙を設けた連結部により架設連結した第1の端子部と、前記磁性体の一辺と対向する対辺に位置する2つの角部近傍にそれぞれ備えられた第2の接続部同士を前記コイル部に対し空隙を設けた連結部により架設連結した第2の端子部とを有し、前記コイル部の一端は一方の前記第1の接続部に接続し、前記コイル部の他端は他方の前記第1の接続部に接続されるとともに、前記第1の端子部の連結部を切断可能な部材で形成したものである。これにより、複数の接続部のうちどの接続部を用いても通信装置等のラインとコイルとを接続させることができ、とりわけ同一の端子部に属する接続部と通信装置等のラインとを接続することも可能になり、より設置の際の方向性を向上させてアンテナ装置を得ることができる。 According to the third aspect of the present invention, a magnetic body composed of a substantially rectangular parallelepiped, a coil section that is wound around the magnetic body and has two ends, and the vicinity of two corners that are located on one side of the magnetic body A first terminal portion constructed by connecting and connecting the first connection portions provided to each of the coil portions with a connection portion provided with a gap with respect to the coil portion , and two corner portions located on opposite sides opposite to one side of the magnetic body And a second terminal portion constructed by connecting and connecting the second connection portions provided in the vicinity to each other by a connecting portion having a gap with respect to the coil portion, and one end of the coil portion is one of the first first portions. The other end of the coil part is connected to the other first connecting part, and the connecting part of the first terminal part is formed of a member that can be cut. Thereby, it is possible to connect the line such as the communication device and the coil regardless of which of the plurality of connection portions is used, and particularly connect the connection portion belonging to the same terminal portion and the line such as the communication device. It is also possible to improve the directionality at the time of installation and obtain the antenna device.

以下、本発明の実施例について図面を用いて説明する。図1は本発明の一実施例におけるアンテナ装置の概略構成図であり、コイルを巻回する前の状態を示す。1はフェライトで、略直方体の形状を有する。2aおよび2bは端子でありフェライトの4つの角部近傍に接続されている。端子2aおよび2bはそれぞれ位置AとCおよび位置BとDの間で電気的に接続されている。つまり、端子2aは位置AおよびCでフェライト1から外部に突出した接続部3aおよび接続部3cとこれら接続部を互いに連結する棒状の連結部4aからなる。連結部4aはフェライト1の一辺に沿って設けられている。端子2bも端子2aと同様の構成であり、フェライト1の一辺に対向する他辺に沿って設けられた連結部4bが接続部3bおよび3dを連結している。なお、各接続部3aから3dはアンテナ装置が通信装置等に実装される際にアンテナ装置を通信装置等に固定する機能も有する。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of an antenna device according to an embodiment of the present invention, and shows a state before a coil is wound. Reference numeral 1 denotes a ferrite having a substantially rectangular parallelepiped shape. Reference numerals 2a and 2b denote terminals which are connected in the vicinity of the four corners of the ferrite. Terminals 2a and 2b are electrically connected between positions A and C and positions B and D, respectively. That is, the terminal 2a includes a connecting portion 3a and a connecting portion 3c protruding from the ferrite 1 at positions A and C and a rod-like connecting portion 4a that connects these connecting portions to each other. The connecting portion 4 a is provided along one side of the ferrite 1. The terminal 2b has the same configuration as the terminal 2a, and a connecting portion 4b provided along the other side facing one side of the ferrite 1 connects the connecting portions 3b and 3d. Each of the connection portions 3a to 3d also has a function of fixing the antenna device to the communication device or the like when the antenna device is mounted on the communication device or the like.

図2および図3は本発明の一実施例におけるアンテナ装置の概略構成図であり図1のアンテナ装置にコイルを巻いた状態を示したものである。図2においてコイル5はその一端を端子2aの位置Aにある接続部3aに接続し、他端を端子2bの位置Bにある接続部3bに接続している。端子2aにおいて、接続部3aと接続部3cが連結部4aにより連結されているので端子2aの接続部3cおよび端子2bの接続部3bはコイル5を介して互いに導通されている。従って、図2で示すようにコイル5を接続部3aおよび3bに接続させたとしても通信装置のラインを端子2aの位置Cにおける接続部3cおよび端子2bの位置Bにおける接続部3bと接続させることができる。図2で示すアンテナ装置の場合には通信装置の一方のラインを端子2aの位置AあるいはCにおける接続部3aあるいは3cと接続することができ、他方のラインを端子2bの位置BあるいはDにおける接続部3bあるいは3dと接続することができる。この結果、アンテナ装置を通信装置に実装する際に設置の方向性の自由度を向上することができる。   2 and 3 are schematic configuration diagrams of an antenna device according to an embodiment of the present invention, in which a coil is wound around the antenna device of FIG. In FIG. 2, one end of the coil 5 is connected to the connecting portion 3a at the position A of the terminal 2a, and the other end is connected to the connecting portion 3b at the position B of the terminal 2b. In the terminal 2a, since the connecting portion 3a and the connecting portion 3c are connected by the connecting portion 4a, the connecting portion 3c of the terminal 2a and the connecting portion 3b of the terminal 2b are electrically connected to each other via the coil 5. Therefore, even if the coil 5 is connected to the connection portions 3a and 3b as shown in FIG. 2, the line of the communication device is connected to the connection portion 3c at the position C of the terminal 2a and the connection portion 3b at the position B of the terminal 2b. Can do. In the case of the antenna device shown in FIG. 2, one line of the communication device can be connected to the connection portion 3a or 3c at the position A or C of the terminal 2a, and the other line is connected to the position B or D of the terminal 2b. It can be connected to the part 3b or 3d. As a result, when the antenna device is mounted on the communication device, the degree of freedom of installation can be improved.

図3は、通信装置のラインを一方の端子2aのみに接続した場合を示す。コイル5は端子2aの位置Aにおける接続部3aおよび位置Cにおける接続部3cにそれぞれ接続されている。一方、通信装置のラインも端子2aの接続部3aおよび接続部3cに接続されている。ここで、端子2aが図2で示す状態のままであると、接続部3aおよび接続部3cが互いに連結されているので導通されてしまう。このように通信装置のラインと一方の端子2aのみとを接続したい場合には図3に示すように連結部4aを切断すればよい。連結部4aを切断さえすれば、アンテナ装置の一方側から通信装置のラインと接続させることができ、図2で示すアンテナ装置と同様にアンテナ装置を通信装置に実装する際に設置の方向性の自由度を向上させることができる。   FIG. 3 shows a case where the line of the communication device is connected to only one terminal 2a. The coil 5 is connected to the connecting portion 3a at the position A of the terminal 2a and the connecting portion 3c at the position C, respectively. On the other hand, the line of the communication device is also connected to the connection part 3a and the connection part 3c of the terminal 2a. Here, if the terminal 2a remains in the state shown in FIG. 2, the connection portion 3a and the connection portion 3c are connected to each other, and thus are brought into conduction. In this way, when it is desired to connect the line of the communication device and only one terminal 2a, the connecting portion 4a may be cut as shown in FIG. As long as the connecting portion 4a is cut, it can be connected to the line of the communication device from one side of the antenna device, and when the antenna device is mounted on the communication device like the antenna device shown in FIG. The degree of freedom can be improved.

なお、実際に通信装置に実装される際にはフェライト1および端子2a、2bを樹脂等で覆って用いられる。この際には樹脂より接続部3a、3b、3cおよび3dの先端部のみが露出され通信装置のラインと接続される。   When actually mounted on a communication device, the ferrite 1 and the terminals 2a and 2b are covered with a resin or the like. At this time, only the tips of the connecting portions 3a, 3b, 3c and 3d are exposed from the resin and connected to the line of the communication device.

本発明のアンテナ装置によれば、通信装置に実装させる際に通信装置のラインと接続する端子を固定することなく自由に選択することができ、この結果、設置の際の方向性の自由度を向上させることができ、アンテナ装置を用いた通信装置に有用である。   According to the antenna device of the present invention, it is possible to freely select without fixing the terminal connected to the line of the communication device when the antenna device is mounted on the communication device. As a result, the degree of freedom in the direction of installation can be reduced. It can be improved, and is useful for a communication device using an antenna device.

1 フェライト
2a、2b 端子
3a、3b、3c、3d 接続部
4a、4b 連結部
5 コイル
DESCRIPTION OF SYMBOLS 1 Ferrite 2a, 2b Terminal 3a, 3b, 3c, 3d Connection part 4a, 4b Connection part 5 Coil

Claims (3)

略直方体からなる磁性体と、
前記磁性体に形成された一辺に2つ設けられた第1の接続部と、
前記磁性体に形成された他辺に2つ設けられた第2の接続部と
前記磁性体の外面に沿って巻回され2つの端部を備えるコイル部と、
前記2つの第1の接続部同士前記コイル部に対し空隙を設けた連結部により架設連結した第1の端子部と、
前記2つの第2の接続部同士前記コイル部に対し空隙を設けた連結部により架設連結した第2の端子部とを有し、
前記コイル部の一端は前記第1の接続部のいずれか一方のみに接続し、前記コイル部の他端は前記第2の接続部のいずれか一方のみに接続されることを特徴とするアンテナ装置。
A magnetic body composed of a substantially rectangular parallelepiped;
Two first connecting portions provided on one side formed in the magnetic body;
Two second connecting portions provided on the other side formed in the magnetic body ;
A coil unit comprising two ends are wound along the outer surface of the magnetic body,
A first terminal portion constructed by connecting the two first connection portions to each other by a connecting portion provided with a gap with respect to the coil portion ;
A second terminal portion constructed by connecting the two second connection portions to each other by a connecting portion provided with a gap with respect to the coil portion ;
Antenna device one end of the coil portion is connected to only one of said first connecting portion, the other end of the coil portion, characterized in that it is connected to only one of the second connecting portion .
前記第1の接続部と前記第2の接続部はアンテナ装置を実装させる際の固定部として機能することを特徴とする請求項1記載のアンテナ装置。   The antenna device according to claim 1, wherein the first connecting portion and the second connecting portion function as a fixing portion when the antenna device is mounted. 略直方体からなる磁性体と、
該磁性体を巻回し2つの端部を備えるコイル部と、
前記磁性体の一辺に位置する2つの角部近傍にそれぞれ備えられた第1の接続部同士を前記コイル部に対し空隙を設けた連結部により架設連結した第1の端子部と、
前記磁性体の一辺と対向する対辺に位置する2つの角部近傍にそれぞれ備えられた第2の接続部同士を前記コイル部に対し空隙を設けた連結部により架設連結した第2の端子部とを有し、
前記コイル部の一端は一方の前記第1の接続部に接続し、前記コイル部の他端は他方の前記第1の接続部に接続されるとともに、前記第1の端子部の連結部を切断可能な部材で形成したことを特徴とするアンテナ装置。
A magnetic body composed of a substantially rectangular parallelepiped;
A coil portion wound around the magnetic body and having two ends;
A first terminal portion constructed by connecting and connecting the first connection portions respectively provided in the vicinity of two corner portions located on one side of the magnetic body with a connection portion provided with a gap with respect to the coil portion ;
A second terminal portion formed by connecting and connecting the second connection portions provided in the vicinity of two corner portions located on the opposite side opposite to one side of the magnetic body by a connection portion provided with a gap with respect to the coil portion; Have
One end of the coil portion is connected to one of the first connection portions, the other end of the coil portion is connected to the other first connection portion, and the connection portion of the first terminal portion is cut. An antenna device characterized by being made of a possible member .
JP2010116868A 2009-08-28 2010-05-21 Antenna device Expired - Fee Related JP5115585B2 (en)

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EP10174332.6A EP2296228B1 (en) 2009-08-28 2010-08-27 Antenna, antenna unit, and communication device using them
CN2010205116285U CN201898209U (en) 2009-08-28 2010-08-30 Antenna, antenna element and communication device using antenna and antenna element

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